Intrusion alarm system
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United States of America Patent
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-
Feb 1, 1994
Grant Date -
N/A
app pub date -
Dec 31, 1991
filing date -
Dec 31, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A passive intrusion alarm system having an array of infrared sensing elements arranged and sampled so as to provide a two dimensional thermographic image of an intruder.
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